seasponge,seaanemone

monadiko greek natural sea sponge 希腊天然海绵
a colourful display of sea sponges.
a terrain that has lots of barrel sponge and colourful sea fans.
photo of gorgonian soft coral, a brisingid sea star and sponges
图片来源于:will thomas 最老的动物 海绵(sea sponge)